Tub stopper



FIG. 1 is a front elevational view of a first embodiment of the tub stopper showing my new design;

FIG. 2 is a rear elevational view thereof; and

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top perspective view of a second embodiment of the tub stopper showing my new design; and,

FIG. 8 is a bottom perspective view thereof. 

CLAIM The ornamental design for a tub stopper, as shown and described. 